Home / 7,764.61-11,651.69-3,083.80

Finding the Fourth Proportional to 7,764.61, 11,651.69 and 3,083.80

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Solution

The fourth proportional to 7,764.61, 11,651.69 and 3,083.80 is: 4,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.61 : 11,651.69 = 3,083.80 : x
  2. Step 2: Convert to fraction form
    7,764.61/11,651.69 = 3,083.80/x
  3. Step 3: Cross multiply
    7,764.61x = 11,651.69 × 3,083.80
  4. Step 4: Simplify right side
    7,764.61x = 35,931,481.62
  5. Step 5: Solve for x
    x = 35,931,481.62/7,764.61
  6. Step 6: Final answer
    x = 4,627.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.